uint64_t id = 0;
int ret;
+ ctf_pos_get_event(pos);
+
if (pos->offset == EOF)
return EOF;
+ assert(pos->offset < pos->content_size);
/* Read event header */
if (stream->stream_event_header) {
id = integer_definition->value._unsigned;
}
}
+ stream->event_id = id;
/* lookup timestamp */
stream->has_timestamp = 0;
{
struct ctf_stream_class *stream_class = stream->stream_class;
struct ctf_stream_event *event;
- uint64_t id = 0;
+ uint64_t id;
int ret;
+ id = stream->event_id;
+
/* print event header */
if (stream->stream_event_header) {
- struct definition_integer *integer_definition;
- struct definition *variant;
-
- /* lookup event id */
- integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE);
- if (integer_definition) {
- id = integer_definition->value._unsigned;
- } else {
- struct definition_enum *enum_definition;
-
- enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE);
- if (enum_definition) {
- id = enum_definition->integer->value._unsigned;
- }
- }
-
- variant = lookup_variant(&stream->stream_event_header->p, "v");
- if (variant) {
- integer_definition = lookup_integer(variant, "id", FALSE);
- if (integer_definition) {
- id = integer_definition->value._unsigned;
- }
- }
-
ret = generic_rw(pos, &stream->stream_event_header->p);
if (ret)
goto error;
assert(off >= 0);
pos->offset = 0;
} else {
+ read_next_packet:
switch (whence) {
case SEEK_CUR:
+ if (pos->offset == EOF)
+ return;
/* The reader will expect us to skip padding */
assert(pos->offset + offset == pos->content_size);
++pos->cur_index;
file_stream->parent.timestamp = index->timestamp_begin;
pos->content_size = index->content_size;
pos->packet_size = index->packet_size;
- if (index->data_offset < index->content_size)
+ if (index->data_offset < index->content_size) {
pos->offset = 0; /* will read headers */
- else {
+ } else if (index->data_offset == index->content_size) {
+ /* empty packet */
+ pos->offset = index->data_offset;
+ offset = 0;
+ goto read_next_packet;
+ } else {
pos->offset = EOF;
return;
}
if (magic == TSDL_MAGIC) {
ret = 1;
td->byte_order = BYTE_ORDER;
+ CTF_TRACE_SET_FIELD(td, byte_order);
} else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) {
ret = 1;
td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ?
LITTLE_ENDIAN : BIG_ENDIAN;
+ CTF_TRACE_SET_FIELD(td, byte_order);
}
- CTF_TRACE_SET_FIELD(td, byte_order);
end:
rewind(fp);
return ret;
}
+/*
+ * Returns 0 on success, -1 on error.
+ */
+static
+int check_version(unsigned int major, unsigned int minor)
+{
+ switch (major) {
+ case 1:
+ switch (minor) {
+ case 8:
+ return 0;
+ default:
+ goto warning;
+ }
+ default:
+ goto warning;
+
+ }
+
+ /* eventually return an error instead of warning */
+warning:
+ fprintf(stdout, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n",
+ major, minor);
+ return 0;
+}
+
static
int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in,
FILE *out)
header.checksum_scheme);
return -EINVAL;
}
+ if (check_version(header.major, header.minor) < 0)
+ return -EINVAL;
if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) {
memcpy(td->uuid, header.uuid, sizeof(header.uuid));
CTF_TRACE_SET_FIELD(td, uuid);
toread -= readlen;
if (!toread) {
ret = 0; /* continue reading next packet */
- break;
+ goto read_padding;
}
}
return ret;
+
+read_padding:
+ toread = (header.packet_size - header.content_size) / CHAR_BIT;
+ ret = fseek(in, toread, SEEK_CUR);
+ if (ret < 0) {
+ fprintf(stdout, "[warning] Missing padding at end of file\n");
+ ret = 0;
+ }
+ return ret;
}
static
ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf);
if (ret)
goto end_packet_read;
+ } else {
+ unsigned int major, minor;
+ ssize_t nr_items;
+
+ td->byte_order = BYTE_ORDER;
+
+ /* Check text-only metadata header and version */
+ nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor);
+ if (nr_items < 2)
+ fprintf(stdout, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
+ if (check_version(major, minor) < 0) {
+ ret = -EINVAL;
+ goto end_packet_read;
+ }
+ rewind(fp);
}
scanner = ctf_scanner_alloc(fp);